Molecular and Supramolecular Structures of a Nickel(II)-Copper(II)-Nickel(II)Trinuclear Complex Containing a New Macrocyclic Oxamido Complex Ligand

摘要

The title complex,[Cu(NiL)_2(H_2O)_2](ClO_4)_2,has been obtained by self-assembly,where [NiL] is a new macrocyclic oxamido complex ligand.In the crystal,a new kind of supramolecu-lar interaction between the carbon atoms of the oxamido group of each [NiL] complex ligand in a [Cu(NiL)_2(H_2O)_2]~(2+)cation and the oxygen atom of one of the ester carbonyls of another [Cu(NiL)_2(H_2O)_2]~(2+)cation,and C-H ...O,O-H ...O and n ...pi interactions are observed and link the trinuclear fragments and perchlorate ions to form a 3D supramolecular network.